turning vans into armored vehicles.
https://rostec.ru/news/nashkrash-8-odeyalo-ot-pul-i-oskolkov/
#НашКраш-8: Bullet and Shrapnel Blanket
In the new issue of the project, the #НашКраш got the legendary "loaf" - an all-wheel drive minibus of the UAZ brand, which is very popular in the NVO zone. It was shot at with a pistol, grenades exploded next to it and right on it. But still, Rostec is not yet engaged in the production of minibuses, and the main characters were modern protective materials produced by the Research Institute of Steel of the Kalashnikov Concern. Combined armor panel.
The host of the program, military journalist Alexei Egorov, talked about how this protection is arranged and about the test results with Dmitry Chumachenko, head of the department of structural protection schemes of the steel research institute.
− The question is immediately uncomfortable: how to explain this through penetration?
− Yes, this is a through penetration, but you need to understand that it hit the seam – the weakest point. Each product has its own weaknesses. Each vest has stitches, each panel has areas for joining the main materials. Accordingly, this is a weak point. Not a guaranteed case, but, nevertheless, there is a breakout. About 109 fragments. We calculated and estimated that this is less than one percent.
− Did one out of 109 pass?
− Yes.
− Let's turn the blanket over so you can see the other side. Look carefully, another through penetration and another one. We have already studied this blanket. In total, there were three through penetrations.
− That's right, but you have to understand that it was after the second impact of a grenade.
− That is, the material has already lost its integrity?
− After one high-explosive fragmentation impact on the product, it loses its original properties. It should be noted that the entire area is clean. We noted only one fragment, which was pierced by the UAZ itself. Even the glass is all intact. Not a wave, nothing beat him. That is, the entire area that we defended with blankets, it is intact. We believe that the blanket has fulfilled its functions one hundred percent.
"That is, here, in the protection, there are through holes, and we see some dents on the car.
− The main purpose is the staff, the users are safe. This is the purpose of our product.
− Initially, why did you design these blankets?
− Initially, it was developed to protect personnel, users, that is, manpower from shrapnel. Curtaining doorways, window openings, sheltering personnel.
2_2.jpg
− Size?
− A meter wide and two meters long. The weight of the product is 11 kg.
− Is it a lot or a little for this level of protection?
− It's up to the users to judge, but I think that the mass is small. To protect the entire car, you need about six pieces, that is, we add about 66 kg, which is insignificant for the carrying capacity of the "loaf" - plus one person.
− As far as I understand, this is similar to the armor protection that is now put inside armored cars, inside a tank?
− True, but the composition of this product is completely different, it is patented and differs from what is installed on armored vehicles. This is very important.
"It's a blanket in its purest form. Are there any hard elements there?
− No, absolutely. That is, it is flexible. There are no problems to fold it, roll it up and put it away.
3_3.jpg
− Open the blanket that has survived the high-explosive impact. How can we comment on this?
− Again, it must be understood that there was an impact of a shock wave here. It is very destructive. That is, the grenade was lying on the product itself. The purpose of the blanket is to protect against shrapnel, but not to protect against the high-explosive effects of a grenade. Accordingly, the structure broke through, we saw it all ourselves.
− When I talked about it in the video, I said that it was akin to a powerful sledgehammer that flew from above. How correct is this comparison?
"A very powerful sledgehammer, and the roof of the car acted as an anvil. With the interaction of the shock wave and the roof as a rigid foundation, the main structure was ruptured. If there had been a distance between the blanket and the roof, there would have been much less epicenter of the explosion.
− If the distance was 5-10 cm, would it already protect you?
− It would have been better. Because the main purpose of flexible structures is to stretch in the process of the impact of a fragment.
"Let's turn the blanket over, and we see...
− Two small penetrations from the impact of the shock wave. That is, it is the integrity of the structure that has been violated, but there is no hole as such.
− As far as I understand, this is already on the market?
− Yes, it is sold to anyone.
5_5.jpg
− Basically, who takes it?
− They are taken mainly by soldiers to protect equipment, the wounded, for transportation in such "UAZs". They are also taken for hanging dugouts.
− I heard the following story that armored vehicles with ordinary wheels are also simply screwed on self-tapping screws.
− Exactly, yes. There was such a case, they took these blankets from us to cover the wheels. Because at the moment of exposure to shrapnel, the wheels are punctured, and the equipment cannot leave the battlefield.
− Is it a protection class?
"This is an anti-fragmentation blanket, but the protection class, as we have seen, is Br1.
"And now we are going to the product that has a protection class?..
− Br3.
"We see that we grabbed five bullets from Yarygin's pistol. Predictable result?
− Yes. Quite expected. This was the calculation.
– The panel weighing 28 kg withstood an F-1 grenade located at a distance of 60 cm.
− From armored steel, about 60 kg, taking into account the mount, would weigh. That is, we win twice in mass.
− What is the secret?
− Here is a combination of several materials. The main layer is light alloy metal, and the sublayer is made of UHMPH, ultra-high molecular weight polyethylene.
− And this is also on the open market?
− Yes.
8.jpg
− I need to explain another important point to the audience. When we did the experiment, you proudly said that you were holding an F-1 and holding a pistol quite calmly. Although a pistol has a more powerful bullet, the blow, as many people think, is stronger. But really?
− In fact, the speed of a pistol bullet is much lower than the speed of fragments. And again, it must be understood that the fragments are sharply conical, and their penetrating effect is much higher.
− In numbers, at a distance of half a meter, as we had, the speed of the fragments?
"Approximately about 730 m/s, and the bullet has about 400 m/s.
− Learning to stop fragments is much cooler?
− Yes, it is much cooler and even much more difficult. Because it is much more difficult to catch fragments and leave a whole structure than to catch a bullet, and the structure will be broken.
− So you mean that if there was an armor plate in this place, it could simply crack?
− Exactly, yes. That is, it could crumble, crack, burst. That is, the integrity would definitely be violated.
− Have you tried to mount this panel on the roof?
− No, we did not have such experience. We did not try it on the roof. But, I want to note, we had an experience when we booked a UAZ. There was a slightly different stove. We made one product and sent it as part of a donation to the fighters for the NWO.
− I want to explain to the audience what the coolness of our video is. This is an absolute premiere. That is, in addition to the fact that we are now filming this for the first time, as I understand it, the full cycle of tests is now taking place right before our eyes?
− That's right. Today we are testing it for the first time, that is, it was developed relatively recently, maybe a few months ago.
− Does anyone in Russia make such panels with such protection in such weight?
− We have no analogues like this.